505 Prospect Ave

2,338 Sq. Ft.
$577 / Sq. Ft.
2,338
Sq. Ft.
$577
per Sq. Ft.

Description

Hidden away on well over a half-acre along one of Princeton’s most coveted streets, just seconds from Riverside School and Carnegie Lake, this architecturally distinct mid-century modern offers privacy and potential. An oversized carport with a peaked roof presents a striking first impression and a sheltered welcome. The centerpiece of the interior is the dramatic living room, where one wall rises in soaring glass and the other is anchored by a double-sided fireplace shared with the den. A powder...Hidden away on well over a half-acre along one of Princeton’s most coveted streets, just seconds from Riverside School and Carnegie Lake, this architecturally distinct mid-century modern offers privacy and potential. An oversized carport with a peaked roof presents a striking first impression and a sheltered welcome. The centerpiece of the interior is the dramatic living room, where one wall rises in soaring glass and the other is anchored by a double-sided fireplace shared with the den. A powder room serves guests near the nicely sized kitchen, which flows out to a stone-floor screened porch. The main-level primary wing includes a quiet study, while the upper floor hosts a second suite, two additional bedrooms and a hall bath, all washed in sunlight passing through clerestory windows. Wood floors and fresh white paint run throughout most of the interior. A shed and basement storage lend practicality. While the house is ready for thoughtful updates, the lot and location alone make this a rare opportunity. Some images are virtually staged.
  1. Listed by Judson R. Henderson • Callaway Henderson Sotheby's Int'l-Princeton
    P: (609)-651-2226 jhenderson@callawayhenderson.com

Property Details for 505 Prospect Avenue

Tax ID Number
14-07805-00016
Ownership
Fee Simple
Condo Coop Association
No
HOA
No
Structure Type
Detached
Style
Mid-Century Modern
Levels/Stories
2.5
Waterfront
No
LISTING UPDATED: 04/22/2026 11:20 AM

Property Details for 505 Prospect Avenue

StatusActive Under Contract
MLS #NJME2073714
Days on Market30
Taxes$21,052 / year
HOA Fees-
Condo/Co-op Fees-
Property TypeSingle Family
MLS TypeResidential / Fee Simple
Year Built1962
Lot Size0.58 AC / 25,265 SF
CountyMercer County

Location

Listing Courtesy of Callaway Henderson Sotheby's Int'l-Princeton
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Building Information for 505 Prospect Avenue

Stories-Year Built1962Building Size-Lot Size0.58 AC / 25,265 SF

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$8,552 per month

30 year fixed, 6.46% Interest

Principal and Interest

$6,798

Property Taxes

$1,754

HOA Dues

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Property Information for 505 Prospect Avenue

Location
Location
  • School District Name: PRINCETON REGIONAL SCHOOLS
  • School District County ID: 300200396175
  • SchoolDistrictSource: Listing Agent
  • Elementary School: RIVERSIDE (MERCER NJ)
  • ElementarySchoolSource: Listing Agent
  • Middle Or Junior School: J WITHERSPOON (MERCER NJ)
  • MiddleSchoolSource: Listing Agent
  • High School: PRINCETON (MERCER NJ)
  • HighSchoolSource: Listing Agent
  • County: MERCER
  • MLS Area: Princeton (21114)
Waterfront / Water Access
Waterfront / Water Access
  • Water View: No
  • Water Access: No
  • Water Oriented: No
  • Navigable Water: No
  • Tidal Water: No
  • Riparian Rights Y/N: No
Association / Community Info
Association / Community Info
  • Senior Community: No
Taxes and Assessment
Taxes and Assessment
  • Tax Year: 2025
  • Tax Assessed Value: $770,300
  • Year Assessed: 2025
  • County Tax: $0
  • Improvement Assessed Value: $212,300
  • City Town Tax: $0
  • Land Assessed Value: $558,000
  • Clean Green Assessed: No
  • Land Use Code: 0
  • Zoning: R5
  • Tax Lot: 00016
  • School Tax: $0
  • Automatically Update Tax Values Y/N: Yes
Rooms
Main
  • # Bedrooms Count Main Level: 1
  • # Bathrooms Count Main Level: 2
  • # Bathrooms Full Main Level: 1
  • # Bathrooms Half Main Level: 1
All Upper Levels
  • # Bedrooms Count All Upper Levels: 3
  • # Bathrooms Count All Upper Levels: 1
  • # Bathrooms Full All Upper Levels: 1
Upper Level 2
  • # Bedrooms Count Upper Level: 3
  • # Bathrooms Count Upper Level: 1
  • # Bathrooms Full Upper Level: 1
Rooms
  • Room List: Living Room, Dining Room, Primary Bedroom, Bedroom 2, Bedroom 3, Bedroom 4, Kitchen, Study, Office, Primary Bathroom, Screened Porch
  • Stories: Main, Upper 2
Rooms Information
Room 1
  • Room Type: Kitchen
  • Room Length: 17.0
  • Room Width: 17.0
  • Room Level: Main
  • Room Exists: Yes
Room 2
  • Room Type: Dining Room
  • Room Length: 11.0
  • Room Width: 14.0
  • Room Level: Main
  • Room Exists: Yes
Room 3
  • Room Type: Study
  • Room Length: 10.0
  • Room Width: 11.0
  • Room Level: Main
  • Room Exists: Yes
Room 4
  • Room Type: Screened Porch
  • Room Length: 11.0
  • Room Width: 17.0
  • Room Level: Main
  • Room Exists: Yes
Room 5
  • Room Type: Primary Bedroom
  • Room Length: 15.0
  • Room Width: 16.0
  • Room Level: Main
  • Room Exists: Yes
Room 6
  • Room Type: Primary Bathroom
  • Room Length: 5.0
  • Room Width: 11.0
  • Room Level: Main
  • Room Exists: Yes
Room 7
  • Room Type: Office
  • Room Length: 10.0
  • Room Width: 7.0
  • Room Level: Main
  • Room Exists: Yes
Room 8
  • Room Type: Living Room
  • Room Length: 23.0
  • Room Width: 16.0
  • Room Level: Upper 1
  • Room Exists: Yes
Room 9
  • Room Type: Bedroom 2
  • Room Length: 17.0
  • Room Width: 11.0
  • Room Level: Upper 2
  • Room Exists: Yes
Room 10
  • Room Type: Bedroom 3
  • Room Length: 11.0
  • Room Width: 16.0
  • Room Level: Upper 2
  • Room Exists: Yes
Room 11
  • Room Type: Bedroom 4
  • Room Length: 11.0
  • Room Width: 6.0
  • Room Level: Upper 2
  • Room Exists: Yes
Building Info
Building Info
  • Total Finished SQFT: 2,338.00
  • Total Finished SQFT Source: Assessor
Lot / Land Information
Lot / Land Information
  • Lot Size Source: Assessor
  • Lot Size Dimensions: 0.00 x 0.00
  • Lot Dimensions Source: Assessor
  • Parcel ID: 2145285
Parking
Parking
  • Type Of Parking: Attached Carport, Driveway
  • Driveway - # of Spaces: 2
  • Attached Carport - # of Spaces: 2.0
Interior Features
Interior Features
  • Interior Features: Bathroom - Stall Shower, Bathroom - Tub Shower, Built-Ins, Dining Area, Kitchen - Island, Primary Bath(s), Recessed Lighting, Skylight(s), Walk-in Closet(s)
  • Fireplace: Yes
Exterior Features
Exterior Features
  • Outdoor Living Structures: Patio(s)
  • Pool: No Pool
  • Other Structures: Above Grade, Below Grade
Utilities
Utilities
  • Heating: Yes
  • Cooling Type: Central A/C, Window Unit(s)
  • Cooling Fuel: Electric
  • Heating Type: Forced Air, Baseboard - Electric
  • Heating Fuel: Natural Gas
  • Hot Water: Natural Gas
  • Water Source: Public
  • Sewer Septic: Public Sewer
Confidential Data
Listing Office
  • List Agent AOR: Mid Jersey Association of REALTORS

Property History for 505 Prospect Avenue

DateEvent & SourcePriceAppreciation
Apr 22, 2026

Active Under Contract

BRIGHT #NJME2073714

Mar 24, 2026

Listed (Active)

BRIGHT #NJME2073714

$1,350,000
DateEvent & SourcePrice
04/22/2026

Active Under Contract

BRIGHT #NJME2073714

03/24/2026

Listed (Active)

BRIGHT #NJME2073714

$1,350,000

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 505 Prospect Avenue

Taxable ValueLand$558,000Additions$212,300Total$770,300
Tax Record2024$20,513 ($1,709 / month)
Home Facts
Beds0Total Finished SqFt2,338 SqFtAbove Grade Finished SqFt2,338 SqFtStories1Lot Size25,265 SqFtStyleSingle Family ResidenceYear Built1962ZoningR5CountyMERCERAPN14 07805-0000-00016

Schools near 505 Prospect Avenue

This home is within Princeton Public School District.
Rating
School
Type
Grades
Distance
Public - PK to 5
Public - 6 to 8
Public - 9 to 12
Private - 7 to 12
Rating
School
Distance
Riverside Elementary School
PublicPK to 5

J Witherspoon Middle School
Public6 to 8

Princeton High School
Public9 to 12

Fusion Academy Princeton
Private7 to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity.

Listing Courtesy of Callaway Henderson Sotheby's Int'l-Princeton

Based on information from one of the following Multiple Listing Services: BRIGHT, Greater LeHigh Valley Regional MLS, Greator Scranton Board of REALTORS® and Pocono Mountains Association of REALTORS®. Information being provided is for the visitor’s personal, noncommercial use and may not be used for any purpose other than to identify prospective properties visitor may be interested in purchasing. The data contained herein is copyrighted by BRIGHT, Greater LeHigh Valley Regional MLS, Greator Scranton Board of REALTORS® and Pocono Mountains Association of REALTORS® is protected by all applicable copyright laws. Any dissemination of this information is in violation of copyright laws and is strictly prohibited. Property information referenced on this web site comes from the Internet Data Exchange (IDX) program of the MLS. This web site may reference real estate listing(s) held by a brokerage firm other than the broker and/or agent who owns this web site. For the avoidance of doubt, the accuracy of all information, regardless of source, is deemed reliable but not guaranteed and should be personally verified through personal inspection by and/or with the appropriate professionals.